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Finding the Fourth Proportional to 106,105.70, 146,376.78 and 63,590.42

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Solution

The fourth proportional to 106,105.70, 146,376.78 and 63,590.42 is: 87,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,105.70 : 146,376.78 = 63,590.42 : x
  2. Step 2: Convert to fraction form
    106,105.70/146,376.78 = 63,590.42/x
  3. Step 3: Cross multiply
    106,105.70x = 146,376.78 × 63,590.42
  4. Step 4: Simplify right side
    106,105.70x = 9,308,160,918.45
  5. Step 5: Solve for x
    x = 9,308,160,918.45/106,105.70
  6. Step 6: Final answer
    x = 87,725.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.